13027309 has 2 divisors, whose sum is σ = 13027310. Its totient is φ = 13027308.

The previous prime is 13027277. The next prime is 13027349. The reversal of 13027309 is 90372031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9474084 + 3553225 = 3078^2 + 1885^2 .

It is an emirp because it is prime and its reverse (90372031) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13027309 - 2⁵ = 13027277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13027349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6513654 + 6513655.

It is an arithmetic number, because the mean of its divisors is an integer number (6513655).

Almost surely, 2^13027309 is an apocalyptic number.

It is an amenable number.

13027309 is a deficient number, since it is larger than the sum of its proper divisors (1).

13027309 is an equidigital number, since it uses as much as digits as its factorization.

13027309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1134, while the sum is 25.

The square root of 13027309 is about 3609.3363655941. The cubic root of 13027309 is about 235.2980013048.

The spelling of 13027309 in words is "thirteen million, twenty-seven thousand, three hundred nine".